CN102939486A - Ball valve seal with dynamic c-seal and static c-seal - Google Patents
Ball valve seal with dynamic c-seal and static c-seal Download PDFInfo
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- CN102939486A CN102939486A CN2011800290494A CN201180029049A CN102939486A CN 102939486 A CN102939486 A CN 102939486A CN 2011800290494 A CN2011800290494 A CN 2011800290494A CN 201180029049 A CN201180029049 A CN 201180029049A CN 102939486 A CN102939486 A CN 102939486A
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- seal
- valve
- ring
- seal ring
- valve body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0668—Single packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/205—Sealing effected by the flowing medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
A seal assembly is provided for a rotary ball valve having a top -mounted bonnet (14), thereby allowing the seal assembly to be installed and removed without removing the valve from the pipeline. In an embodiment, the seal assembly may include a seal ring (44) disposed within the valve interior and biased toward the ball element of the valve. A seal carrier (46) may be disposed between the seal ring and the valve body, and the seal carrier may be removably secured to the valve body by a plurality of bolts disposed in the valve interior. A primairy leak path (50) may exists between the seal ring and the seal carrier and a secondary leak path (52) may exists between the seal carrier and the valve body. A first and second auxiliary seal (82,56) may prevent fluid flow through the primary and secondary leak path, respectively.
Description
Technical field
The present invention relates to fluid control device, more specifically, relate to rotation ball-type control valve for fluids.
Background technique
Rotary ball valve is applied in a large amount of process control system application, with some parameters to process flow such as fluid, gas, mud, is controlled.Although process control system can come the parameter of final other hope to pressure, liquid level, pH or fluid to be controlled with control valve, control valve is controlled the mobile speed of fluid basically.
In general, rotary ball valve comprises the valve body that limits fluid input and fluid output.Ball element is arranged in valve body, and around fixed axis rotate with the black box adjacency with separate, thereby the fluid amount of flow that flows through valve is controlled.For the inline ball valve of common bolt, black box is inserted to valve body via fluid input, and use the seal protection ring black box to be held in adjacent with the flange of valve body.
Rotary ball valve parts with valve body, ball element and black box consist of metal usually.While using in high pressure and/or high temperature application, it can sustain.But ball element and black box can engaging and being worn and torn because of ball element in the process driving valve and pass valve and black box repeatedly.The problem caused by wearing and tearing is including, but not limited between the frictional force increase between shortening, ball element and the black box in valve member life-span and ball element and black box and the undesirable leakage between black box and valve body.Similarly, frictional force has and is tending towards along with the serious of component wear increasing, therefore, and dynamic performance and control characteristic variation in valve, and make valve poor efficiency and inaccuracy.In order to alleviate some above-mentioned situation, make some black box biasing, at the closed position place, to provide with respect to ball and to seal more reliably.No matter whether utilize the black box of this specific type, modal rotary ball valve must be taken off from the flow liquid process control system, with in the situation that black box wearing and tearing or other inefficacy by its replacing.
Summary of the invention
In first aspect, valve can comprise there is entrance, the valve body of outlet and the valve inside that is communicated with described entrance and exit fluid.Described valve also can have bonnet, and this bonnet is fixed to the top of described valve body removedly.Described ball element is pivotably mounted on described valve inside, and the outer surface of described ball element can limit the part of spheroid, wherein, on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant.Seal ring can be arranged in described valve inside, and towards described ball element biasing, and described seal ring is suitable for and described ball element sealing engagement.Anchor ring can be arranged in described valve inside, and is fixed to described valve body.In addition, seal carrier can be arranged on the valve inside between described seal ring and described valve body, and described seal carrier is fixed to described anchor ring removedly by a plurality of bolts that are arranged in described valve inside, and is suitable for inserting described valve inside and removes from described valve inside.The major leak path can be present between described seal ring and described seal carrier, and secondary leakage paths can be present between described seal carrier and described valve body.Described major leak path and described secondary leakage paths all can be exposed to fluid pressure at described valve.The first secondary seal can be arranged between described seal ring and described seal carrier, and described the first secondary seal can prevent that the fluid that flows through described major leak path from flowing.The second secondary seal can be arranged between described seal carrier and described valve body, and described the second secondary seal can prevent that the fluid that flows through described secondary leakage paths from flowing.
On the other hand, can form and aim at gap between described seal ring and described seal carrier, described aligning gap can limit the part in described major leak path, described aligning gap can provide and allow the described seal ring space radially mobile with respect to described seal carrier between described seal carrier and described seal ring, thereby, when described ball element engages with described seal ring seal, described seal ring is aimed at voluntarily.
On the other hand, described the first secondary seal be arranged between described seal ring and described seal carrier can be C type Sealing.Additionally, described C type Sealing can be arranged in the groove be formed in described seal ring.The oral area of described C type Sealing can be towards the mobile direction opening of fluid in described major leak path.
Aspect another, described the second secondary seal be arranged between described seal carrier and described valve body can be C type Sealing.The oral area of described C type Sealing can be towards the mobile direction opening of fluid in described secondary leakage paths.Described C type Sealing can be arranged in the groove be formed in described seal carrier.Described C type Sealing can and be formed at a part of sealing engagement of the described groove in described seal carrier with the part of described valve body, in case the fluid of described secondary leakage paths is crossed in fluid stopping, flows.
Aspect another, described the second secondary seal be arranged between described seal carrier and described valve body can be ring spacer.
On the other hand, wavy spring can make described seal ring setover towards described ball element, and described wavy spring can be arranged in the groove be formed in described seal ring.
Aspect another, the Sealing guard ring that is coupled to described seal carrier limits axially displaced away from described seal carrier of described seal ring, and described Sealing guard ring is fixed to described seal carrier removedly by a plurality of bolts that are arranged in described valve inside.
On the other hand, each in described a plurality of bolt is threadedly engaged with the tapped hole be formed in described anchor ring with the tapped hole in the lip part that is formed at described seal carrier.
The method that ring assembly is installed can comprise provides ball valve, this ball valve can comprise there is entrance, the valve body of outlet and the valve inside that is communicated with described entrance and exit fluid.The bonnet opening can setting adjacent with the top of described valve body.Described ball element is pivotably mounted in described valve inside, and the outer surface of described ball element can limit the part of spheroid, and on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant.Assembling seal carrier sub-component on can the position outside described valve inside.Described seal carrier sub-component can comprise seal carrier with inner groovy, be arranged on the seal ring in described inner groovy, and wherein, described seal ring can be suitable for engaging hermetically described ball element.Described seal carrier sub-component also can comprise the first secondary seal be arranged between described seal ring and seal carrier and be coupled to the second secondary seal of described seal carrier.Described seal carrier sub-component can be inserted to described bonnet opening, so that described seal carrier sub-component is arranged in described valve inside.In addition, described seal carrier sub-component can be fixed to described valve body, thereby described the first secondary seal prevents that fluid from flowing through the major leak path, wherein, described major leak path is present between described seal ring and described seal carrier, and described the second secondary seal prevents that fluid from flowing through secondary leakage paths, wherein, described secondary leakage paths is present between described seal carrier and described valve body.Bonnet is fixed to described valve body, to cover described bonnet opening.
In aspect another, valve can comprise there is entrance, the valve body of outlet and the valve inside that is communicated with described entrance and exit fluid.Described valve also can have bonnet, and this bonnet is fixed to the top of described valve body removedly.Ball element is pivotably mounted on described valve inside, and the outer surface of described ball element can limit the part of spheroid, wherein, on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant.Seal ring can be arranged in described valve inside, and towards described ball element biasing, and described seal ring is suitable for and described ball element sealing engagement.The major leak path can be present between described seal ring and described valve body, and described secondary leakage paths can be exposed under fluid pressure in described valve.The one C type Sealing is not slidably disposed on the outer surface of described seal ring, and a described C type Sealing can with a part of sealing engagement of described seal ring and described valve body, in case the fluid in described major leak path is crossed in fluid stopping, flow.And the fluid pressure in a described C type Sealing can make described seal ring setover towards described ball element.In addition, the spring force provided by a described C type Sealing can be provided the relative shift between the part of described seal ring and described valve body, and this spring force is also towards the described ball element described seal ring of setovering.
On the other hand, described seal ring can be arranged in the inner groovy of inside of described valve body, and can limit axially displaced towards described ball element of described seal ring around the snap ring of the part setting of described inner groovy.
On the other hand, the 2nd C type Sealing is not slidably disposed on the outer surface of described seal ring, described the 2nd C type Sealing and the adjacent setting of a described C type Sealing, and described the 2nd C type Sealing engages described seal ring and described valve body hermetically, in case crossing the fluid in described major leak path, fluid stopping flows.
In aspect another, can form at least one between described seal ring and described valve body and aim at gap, described aligning gap limits the part in described major leak path.Described aligning gap provides and allows the described seal ring space radially mobile with respect to described valve body between described seal ring and described valve body, thereby, when described ball element engages with described seal ring seal, described seal ring is aimed at voluntarily.
The accompanying drawing explanation
Fig. 1 shows the sectional view of the rotary ball valve that principles of construction according to the present invention forms;
Fig. 2 shows the local amplification view at the circle II place in Fig. 1, and it shows an embodiment of the black box of rotary ball valve, and wherein, rotary ball valve is in an open position;
Fig. 3 shows another local amplification view similar to Fig. 2, and it is in the closed position that it shows rotary ball valve;
Fig. 4 shows another local amplification view similar to Fig. 2, but it shows the black box that the teaching according to the embodiment of another announcement of the application assembles;
Fig. 5 shows the another local amplification view similar to Fig. 2, but it shows the black box that the teaching according to the embodiment of another announcement of the application assembles, and wherein, rotary ball valve is in an open position;
Fig. 6 shows another local amplification view similar to Fig. 2, and it is in the closed position that it shows rotary ball valve; And
Fig. 7 shows another local amplification view similar to Fig. 2, but it shows the black box that the teaching according to another embodiment of the application's announcement assembles, and the sealing assembly has two C type Sealings.
Embodiment
Fig. 1 shows the rotary ball valve 10 that constructed in accordance with the principles forms, and this rotary ball valve 10 comprises valve body 12, bonnet 14, control unit 16 and black box 24 substantially.Valve body 12 has roughly cylindrical shape, and includes oral area 18, export department 20, main flow path 22 and be positioned at the bonnet opening 25 on the side, top of valve body 12.As shown by arrows, main flow path 22 extends to export department 20 from entrance part 18 along the direction substantially parallel with longitudinal axis A.Entrance part 18 is impaled by entrance flange 26.Export department 20 is impaled by outlet flange 28.Entrance flange 26 and outlet flange 28 are suitable for such as by being spirally connected, welding, clamping or other known way being coupled to the process control pipeline by ball valve 10.
Bonnet 14 comprises roughly tubular structure, and it screws togather the bonnet opening 25 to valve body 12 by a plurality of bonnet bolts 27.Bonnet 14 limited holes 29, well-known, this through hole 29 is supported the various parts of control unit 16.Control unit 16 comprises ball element 30, live axle 32 and supporting axle 34.Live axle 32 is configured to the through hole 29 through bonnet 14, and is suitable for being coupled to rotational actuator by known way.Supporting axle 34 is arranged in blind hole 36, and this blind hole 36 is formed on the wall relative with bonnet opening 25 of valve body 12.As known in the art, the through hole 29 of bonnet 14 and the blind hole 36 of valve body 12 can comprise bearing, to help axle 32,34 in the operating process at ball valve 10 and then to be ball element 30 rotational displacement in the clear all the time.
As shown in Figure 1, ball element 30 can have the cam ball element usually, as known in the art, so that use black box 24 repeatably to seal on closed position.More specifically, the outer surface of ball element 30 can limit the part of spheroid, wherein, on the outer surface of ball element apart from the intrinsic pivoting point such as the ball elements such as spin axis of each axle 32,34, be not a little equidistant.
Shown in example in, black box 24 is arranged on the interior location of valve body 12, this interior location is positioned at the downstream of entrance part 18, and substantially adjacent to bonnet opening 25.So configuration, when black box 24 needs to change, can remove bonnet 14 and control unit 16 from valve body 12, and via bonnet opening 25 filling black boies 24.This has reduced the demand that the pipeline that whole valve 10 is installed from valve 10 removes to change black box 24, and this is in the situation that be welded in place valve 10 very and have superiority by the butt welding mode.
In order to accommodate black box 24, the embodiment's who discloses valve body 12 limits interior grooves 42, and this interior grooves 42 is arranged on the downstream of the entrance part 18 of valve body 12 fully.In other words, interior grooves 42 is arranged between the ball element 30 of the entrance part 18 of valve body 12 and control unit 16.The embodiment's who discloses groove 42 substantially in the form of a ring, and has the stepped ramp type profile that the internal surface by valve body 12 limits, and this groove 42 comprises first and second cylindrical surface 38a, 38b and first and second lateral surfaces 40a, 40b.
When the direction of the flow path 22 with respect to shown in Fig. 1 is considered, the second cylindrical surface 38b is arranged between the entrance part 18 and the first cylindrical surface 38a of valve body 12.Similarly, when the direction of the flow path 22 with respect to shown in Fig. 1 is considered, the second axial surface 40b is arranged between the entrance part 18 and the first axial surface 40a of valve body 12.
And as mentioned above, the first cylindrical surface 38a has the first diameter Da, this first diameter Da is larger than the second tubular diameter Db of the second cylindrical surface 38b.The first diameter Da and Second bobbin diameter Db are all larger than the inlet diameter Di of the entrance part of valve body 12 18.
Like this configuration valve body 12, black box 24 is arranged in valve 10 through bonnet opening 25 as mentioned above, need to entrance flange 26 and 28 butt welding of outlet flange is online rather than screw togather in the environment of Configuration Online thereby valve can be used in.Certainly, above-mentioned design also can be used in valve body screwed togather etc.And the embodiment's who discloses black box 24 is arranged in interior grooves 42, thereby, when ball element 30 is closed as shown in Figure 1, black box 24 is arranged between the entrance part 18 of ball element 30 and valve body 12 fully.Although the interior grooves 42 of the valve body 12 shown in Fig. 1 is described as comprising by two inside cylindrical surface 38a, 38b and two stepped ramp type profiles that lateral surfaces 40a, 40b limit, but the application's alternate embodiment can and/or have greater or less than two inside cylindrical surface and two axial surfaces for other consideration according to the particular design of for example black box 24.
Referring now to Fig. 2, it is that one specific embodiment of the black box 24 that the structure of the teaching according to the application is formed is described along the details drawing of the circle II intercepting of Fig. 1.
As mentioned above, the seal ring 44 of black box 24 substantially in the form of a ring, and can be formed by wear-resistant metal machinings such as carrying out case-hardened stainless steel such as alloy 6 or with alloy 6.As illustrated as the sectional view of Fig. 2, seal ring 44 can laterally limit by the Sealing inwall 58 of tubular and the Sealing outer wall 60 of tubular, and Sealing roof 62 can radially extend towards inwall 58 from Sealing outer wall 60.Seal ring projection 64 can be extended from Sealing roof 62, and seal ring projection 64 can be limited by tubular lateral process wall 66, and this tubular lateral process wall 66 can be from Sealing roof 62 (i.e. the direction parallel with longitudinal axis A) extension vertically.Top boss wall 68 can extend along the direction parallel with Sealing roof 62 from side extensions wall 66.Ball bond surface 70 can be extended between top boss wall 68 and Sealing inwall 58, and ball bond surface 70 is being spill in shape.More specifically, but the wide appropriate section for the spherical outer surface with ball element 30 of ball bond surface 70 fixed wheels association join, thereby move to and close, take a seat or while locating at rotary ball valve 10, ball bond surface 70 and ball element 30 sealing engagement of seal ring 44.Can carry out surface sclerosis to ball bond surface 70, with life-span of strengthening Sealing and prevent the line of engagement wearing and tearing.
As Fig. 2 and Fig. 3 illustrated, black box 24 also comprises the annular seal carrier 46 of valve body 12 inside that are arranged on 12 of seal ring 44 and valve bodies.Seal carrier 46 can be by forming such as corrosion resistant metal machinings such as stainless steels.Seal carrier 46 can be by laterally limiting along axially extended cylindrical carrier inwall 86 roughly and cylindrical carrier outer wall 88.Flat carrier roof 90, with parallel with carrier roof 90 and can be along roughly radially extending with the flat carrier diapire 92 of carrier roof 90 dislocation, and intersects with carrier inwall 86 and carrier outer wall 88, further limits seal carrier 46.The outer groove 94 of carrier can be by limiting from the axially extended tubular recess sidewall 96 of carrier diapire 92 with from the groove roof 98 that carrier outer wall 88 radially extends to recess sidewall 96.But the outer groove 94 of carrier can be formed by the surface of any amount or shape, those surfaces provide groove in carrier diapire 90 and carrier outer wall 88 intersections.Circular vectors flange 100 can be along roughly radially towards extending away from carrier outer wall 88, and carrier flange 100 can be limited by the flange diapire 102 towards radially extending away from carrier outer wall 88.Carrier flange 100 can be by can be parallel with flange diapire 102 and further limit with the flange roof 104 that flange diapire 102 staggers.Cylindrical flange outer wall 106 can extend axially between flange diapire 102 and flange roof 104, cylindrical flange inwall 108 can and flange outer wall 106 radially staggers and can between flange roof 104 and carrier roof 92, extend.Due to carrier roof 92 and flange sidewall 108 quadratures, therefore, can form the carrier inner groovy 110 be positioned at the outer groove 94 diagonal opposite location of carrier of seal carrier 46.A plurality of flange holes 112 can be around carrier flange 100 symmetric arrays.Flange hole 112 can extend axially to flange diapire 102 from flange roof 104.Each flange hole 112 can have screw section, and each flange hole 112 can be suitable for receiving screw thread fixing bolt 48.In addition, a plurality of carrier blind holes 114 can be around seal carrier 46 symmetric arrays, and each blind hole 114 can extend axially towards carrier diapire 90 from flange roof 104.Each blind hole 114 can have screw section, and each blind hole 114 can be suitable for receiving belt cap screw 116.
As Fig. 1 and Fig. 2 illustrated, black box 24 also can comprise annular seal guard ring 118, this annular seal guard ring 118 is suitable for seal ring 44 is fixed in the carrier inner groovy 110 of seal carrier 46.Sealing guard ring 118 can be by forming such as corrosion resistant metal machinings such as stainless steels.Sealing guard ring 118 can be by laterally limiting along axially extended tubular guard ring inwall 120 roughly and tubular guard ring outer wall 122 separately.Flat guard ring roof 124 and and the flat guard ring diapire 126 that with guard ring roof 124 axially stagger parallel with guard ring roof 124 can be along roughly radially extending, and intersect with guard ring inwall 120 and guard ring outer wall 122, further limit Sealing guard ring 118.A plurality of guard rings hole 128 can be around Sealing guard ring 118 symmetric arrays, and each guard ring hole 128 can extend axially between guard ring roof 124 and guard ring diapire 126.Additionally, each guard ring hole 128 can be positioned at corresponding carrier blind hole 114 axially aligns, band cap screw 116 can insert each guard ring hole 128, so that be threadedly engaged with the screw section of cap screw 116 and the screw section of carrier blind hole 114, thereby removedly Sealing guard ring 118 is fixed to seal carrier 46.
The diameter of the tubular lateral process wall 66 of the comparable seal ring 44 of diameter of the tubular guard ring inwall 120 of Sealing guard ring 118 is large, and less than the diameter of the tubular of seal ring 44 sealing outer wall 60.Therefore, in seal ring 44 is arranged on the carrier inner groovy 110 of seal carrier 46, and when Sealing guard ring 118 is fixed to seal carrier 46, guard ring diapire 126 extends through flange sidewall 108 radial inward of seal carrier 46, so that tubular guard ring inwall 120 radially is arranged between the tubular lateral process wall 66 and tubular Sealing outer wall 60 of seal ring 44, and no matter the radial displacement degree of seal ring 44 in the carrier inner groovy 110 of seal carrier 46 how.In addition, when assembling as mentioned above, the axial distance between the interior ridge 76 of Sealing roof 62 and seal ring 44, center spine 78 and ectoloph 80 bottom separately is less than the axial distance between the carrier roof 92 of the guard ring diapire 126 of Sealing guard ring 118 and seal carrier 46.
As Fig. 1 and Fig. 2 illustrated, black box 24 also can have the ring-type anchor ring 130 that is suitable for being fixed to valve body 12.Anchor ring 130 can be by forming such as corrosion resistant metal machinings such as stainless steels.Anchor ring 130 can be by laterally limiting along axially extended tubular anchor inwall 132 roughly and tubular anchor outer wall 134 separately.Flat anchor roof 136 and and the flat anchor diapire 138 that with anchor roof 136 axially stagger parallel with anchor roof 136 can be along roughly radially extending, and intersect with anchor inwall 132 and anchor outer wall 134, further limit anchor ring 130.Anchor ring 130 can be fixed to valve body 12 in the interior grooves 42 of valve body 12.More specifically, anchor outer wall 134 can be substantially against the first cylindrical surface 38a of interior grooves 42, anchor diapire 138 can be substantially against the first lateral surfaces 40a of interior grooves 42.On above-mentioned position, the diameter of the second cylindrical surface 38b of the comparable interior grooves 42 of diameter of tubular anchor inwall 132 is slightly large.For anchor ring 130 is fixed to valve body 12, the screw section of anchor outer wall 134 (not shown) can be threadedly engaged with the screw section (not shown) of the first cylindrical surface 38a of valve body 12.Alternatively, one or many welding (not shown) can be fixed to valve body 12 by anchor ring 130, or anchor ring 130 can be threadably engaged and weld in conjunction with and be fixed to valve body 12.
A plurality of anchor holes 140 can be around anchor ring 130 symmetric arrays, and each anchor hole 140 can extend axially towards anchor diapire 138 from anchor roof 136.Additionally, when anchor ring 130 is fixed to valve body 12, each anchor hole 140 can be oriented to axially align with the corresponding flange hole 112 of seal carrier 46.So configuration, fixing bolt 48 can be inserted into each threaded-on flange hole 112 and be rotated, so that fixing bolt 48 advances towards corresponding anchor hole 140.After gap between the anchor roof 138 of the flange diapire 102 that extends through seal carrier 46 and anchor ring 130, the far-end of fixing bolt 48, before the screw section 144 with anchor hole 140 is threadedly engaged with, then is received in wide diameter portion 142.In operating process, the vibration in rotary ball valve 10 can make one or more fixing bolts 48 remove and engage with the screw section 144 of anchor hole 140.Although above-mentioned releasing engages, avoid axially displaced through the flange hole 112 of seal carrier 46 of fixing bolt 48 by the screw section of flange hole 112, thereby can prevent that fixing bolt 48 from dropping out anchor hole 140 and entering valve body 12 inside.
Referring again to Fig. 2 and Fig. 3, anchor ring 130 can be fixed to valve body 12, and seal carrier 46 can be fixed to anchor ring 130 by a plurality of fixing bolts 48.Additionally, seal ring 44 can be arranged in the carrier inner groovy 110 of seal carrier 46, and seal ring 44 can be fixed in carrier inner groovy 110 by Sealing guard ring 118 by above-described mode.As mentioned above, the axial distance between the interior ridge 76 of the Sealing roof 62 of seal ring 44 and seal ring 44, center spine 78 and ectoloph 80 bottom separately is less than the axial distance between the carrier roof 92 of the guard ring diapire 126 of Sealing guard ring 118 and seal carrier 46.Therefore, the first gap 145 can be present between seal ring 44 and seal carrier 46.Along with rotary ball valve 10 moves to closed position, the first gap 145 of seal ring 44 and seal carrier 46 allow seal rings 44 by ball element 30 towards entrance 18 axially displaced the bias force of wavy spring 84 (and overcome), thereby guarantee seal ring 44 and ball element 30 sealing engagement.When rotary ball valve 10 is in an open position (when ball element 30 does not contact with the ball bond surface 70 of seal ring 44), as shown in Figure 2, the spring groove 74 interior wavy springs 84 that are arranged on seal ring 44 make seal ring 44 towards ball element 30 biasings.Because Sealing guard ring 118 is fixed to seal carrier 46, therefore, at the axial distance of 126 of the carrier roof 92 of seal carrier 46 and guard ring diapires, fix, made axially displaced towards ball element 30 of seal ring 44 by wavy spring 84 thereby limited.
Except above-described the first gap 145, aim at gap 146 and can be present between seal carrier 46 and seal ring 44.More specifically, because the diameter of the tubular Sealing outer wall 60 of seal ring 44 is less than the diameter of the cylindrical flange madial wall 108 of seal carrier, aim at gap 146 and can be present between the surface of seal ring 44 and seal carrier 46.By ball element 30 joint ring 44 time, owing to aiming at gap 46, seal ring can be with respect to seal carrier 46 radial displacements, thereby allow seal ring 44 radially and axially to aim at voluntarily, compensate any ball/seal ring 44 misalignments that cause because of mechanical tolerance, in order to improve the sealing of 30 of seal ring 44 and ball elements.
When closing rotary ball valve 10, the bottom of the interior ridge 76 of seal ring 44 may be not and carrier roof 92 sealing engagement of seal carrier 46, and produce major leak path 50 between seal ring 44 and seal carrier 46.For example, ball element 30 may not can make seal ring 44 axially displaced, to reduce the first gap 145 of 46 of seal ring 44 and seal carrier.Alternatively, axially displaced because of seal ring 44 with respect to seal carrier 46, and the interior ridge 76 of seal ring 44 can be extended towards the radial inward of the carrier inwall 86 of seal carrier 46, thus can make fluid flow into the inner groovy 72 of seal ring 44.
Pressure due to the process flow that flows through stream 22 on entrance 18 sides of ball element 30 is larger than the pressure on outlet 20 sides, and process flow has the trend that flows through major leak path 50, and major leak path 50 can be communicated with outlet 20 side liquids of ball element 30.For the process flow that prevents from flowing through this major leak path 50 flows, can be by such as in first secondary seals such as Fig. 2 and C type Sealing 82 illustrated in fig. 3 be arranged on the inner groovy 72 of seal ring 44.
The oral area of C type Sealing 82 can be towards the conventional stream of the fluid in the major leak path 50 of flowing through, thereby the process flow that flows through major leak path 50 enters the oral area of C type Sealing 82.In embodiment illustrated in fig. 2, the oral area of C type Sealing 82 can be towards the interior ridge 76 of seal ring 44.Can set the size of C type Sealing 82, thereby when valve 10 (as illustrated as Fig. 2) in an open position and seal ring 44 contact with the guard ring diapire 126 of Sealing guard ring 118, the part of C type Sealing 82 outsides contacts with the end face of inner groovy 72 with center spine 78, but with the carrier roof 92 of seal carrier 46, does not contact.Therefore, when ball element 30 is in an open position, a part of process flow can flow through the major leak path 50 of 92 of the outside of C type Sealing 82 and carrier roofs, and does not enter the oral area of C type Sealing 82.
When ball element 30 moves to closed position, ball element 30 contacts with the ball bond face 70 of seal ring 44, and makes carrier roof 92 displacements of seal ring 44 towards seal carrier 46.Along with seal ring 44 displacement, reduced the distance of 92 of the carrier roofs of the end face of inner groovy 72 of seal ring 44 and seal carrier 46, thereby the outside of C type Sealing 82 can contact with the end face of carrier roof 92, inner groovy 72 and the center spine 78 of seal ring 44.Due to this displacement, C type Sealing 82 moves to major leak path 50, thereby makes process flow can enter inner groovy 72 and the oral area that is arranged on the C type Sealing 54 in inner groovy 72.Along with the fluid of relatively high pressure enters the inside of C type Sealing 54 via oral area, C type Sealing 82 expands towards the outside, thereby the end face of the outer surface of C type Sealing and the inner groovy 72 of seal ring 44 and the equal sealing engagement of carrier roof 92, thereby prevent that process flow from flowing in seal ring 44 and 46 of the seal carrier in C type Sealing 82 downstreams.In this way, 82 pairs of major leak paths 50 of C type Sealing are sealed.
Owing to engaging and removing at ball element 30 and seal ring 44 while engaging, C type Sealing 82 moves with respect to seal carrier 46 together with seal ring 44, and therefore, C type Sealing 82 is called dynamic C type Sealing.Dynamically C type Sealing 82 can be by making such as corrosion resistant metals such as N07718 (inconel 718).Because dynamic C type Sealing 82 is made of metal, rotary ball valve 10 can operate under the temperature higher at the valve than using elastomer seal.
When utilizing a plurality of fixing bolts 48 that seal carrier 46 is fixed to anchor ring 130 by previously described mode, cylindrical carrier inwall 85 can extend jointly with the tubular entrance wall 148 that partly limits entrance 18 is basic.Additionally, the diameter of cylindrical carrier outer wall 88 can be less than anchor inwall 132, thereby produces transverse slot 150 in seal carrier 46 and 130 of anchor rings.Because seal carrier 46 is not directly fixed to valve body, therefore, the second gap 153 can be present between the carrier diapire 90 of the second lateral surfaces 40b of interior grooves 42 of valve body 12 and seal carrier 46.The second 152He transverse slot, gap 150 can be communicated with a part of fluid of valve inside, when the part of this valve inside is positioned at closed position at rotary ball valve 10, is positioned at outlet 20 sides of the sealing of 30 of seal ring 44 and ball elements.
Pressure due to the process flow that flows through stream 22 on entrance 18 sides of ball element 30 is higher than the pressure on outlet 20 sides, therefore, process flow has the trend that flows into the second gap 152 and flow to the part of valve inside via transverse slot 150, when the part of this valve inside is positioned at closed position at rotary ball valve 10, be positioned at outlet 20 sides of the sealing of 30 of seal ring 44 and ball elements.Therefore, secondary leakage paths 52 can be present between valve body 12 and seal carrier 46.
In order to prevent that the process flow that flows through secondary leakage paths 52 from flowing, in groove 94 outside the carrier that can be arranged on seal carrier 46 at the second secondary seals 56 such as Fig. 2 and C type Sealings 154 illustrated in fig. 3, thus the oral area of C type Sealing 154 vertically upward aspect to the second lateral surfaces 40b of valve body 12.When process flow flows into the first gap 52 of secondary leakage paths 52, fluid enters the outer groove 94 of carrier and is arranged on the oral area of the C type Sealing 154 in the outer groove 94 of carrier.When the fluid of relatively high pressure enters the inside of C type Sealing 154 via oral area, C type Sealing 154 expands outwardly, thereby the outer surface of C type Sealing 154 is except the second cylindrical surface 38b sealing engagement of the interior grooves 42 with valve body 12, also with recess sidewall 96 and groove roof 98 sealing engagement of the outer groove 94 of carrier, thereby prevent that process flow is mobile 12 of the seal carrier 46 that is positioned at C type Sealing 154 downstreams and valve bodies.In this way, 154 pairs of secondary leakage paths 52 of C type Sealing are sealed.During due to groove 94 outside being arranged on carrier, C type Sealing 154 is fixed, and therefore, C type Sealing can be described as static C type Sealing.
As mentioned above, when hope removes black box 24 from valve body 12, the pipeline that does not need valve body 12 is installed from it, remove.On the contrary, can, by unclamping and removing each in a plurality of bonnet bolts 27, bonnet 14 be removed from valve body 12.Along with bonnet 14 is removed, control unit 16 and ball element 30 can remove via bonnet opening 25 from valve body 12.Then, black box 46 can be removed from anchor ring 130.Particularly, spanner or other suitable instrument can be inserted to valve inside via bonnet opening 25, can pass through spanner, each fixing bolt 48 is rotated, be threadedly engaged with until remove in the screw section 144 of the screw section of each fixing bolt 48 and anchor hole 140 and threaded-on flange hole 112.Then seal carrier 46 can be extracted out from the interior grooves 42 of valve body 12, and remove via bonnet opening 25, wherein seal ring 44, Sealing guard ring 118, the first and second secondary seals 54,56 and wavy spring 74 still are attached on above-mentioned seal carrier 46, to form seal carrier 46 sub-components.Once be positioned at the outside of valve inside, by removing each bonnet bolt 116, just Sealing guard ring 118 can be separated with seal carrier 46.Along with removing Sealing guard ring 118, just seal ring 44 can be removed from the carrier inner groovy 110 of seal carrier 46.
For black box 24 is mounted to valve body 12, at first at the external lateral portion ground of valve inside assembling black box 24.Particularly, by previously described mode, at first C type Sealing 82 is arranged in the inner groovy 72 of seal ring 44, and will be arranged in spring groove 74 such as the elastic element of wavy spring 84 by previously described mode.Then, seal ring 44 is arranged in the carrier inner groovy 110 of seal carrier 46, and Sealing guard ring 118 is arranged on seal ring 44, so that axially align with the corresponding carrier blind hole 114 in being formed at seal carrier 46 in each guard ring hole 128.Then, each in a plurality of bonnet bolts 116 rotated into corresponding carrier blind hole 114 and be threadedly engaged with, Sealing guard ring 118 is fixed to seal carrier 46.Then, C type Sealing 154 is arranged in the outer groove 94 of carrier of seal carrier 46.Then, seal carrier 46 sub-components are inserted to valve inside via bonnet opening 25, and can with the first cylindrical surface 38a of valve body 12, align by the flange outer wall 106 by seal carrier 46, seal carrier 46 sub-components are centered in the interior grooves 42 of valve body 12.Then, each flange hole 112 of seal carrier 46 can be axially aligned with the corresponding anchor hole 140 of anchor ring 130.Then, each fixing bolt 48 can be inserted to corresponding flange hole 112 and rotates from valve is inner, until the screw section 144 of the anchor hole 140 of the screw section of fixing bolt 48 and anchor ring 130 is threadedly engaged with.So assembling, seal ring 44 may initial setting up in carrier inner groovy 110, to guarantee suitable sealing between the part of the ball outside of the ball bond surface 70 of seal ring 44 and ball element 30.But, when in the closing process at rotary ball valve 10, ball element 30 contacts with ball bond surface 130, due to the alignment feature voluntarily of previously described seal ring 44, ball element 30 makes seal ring 44 vertically and radially is shifted at carrier inner groovy 110.
In another embodiment of Fig. 4 explanation, black box 224 can be basic identical with above-described black box 24.But, in the seal carrier 246 of black box 224, the cylindrical carrier outer wall 88 of seal carrier 246 extends to carrier diapire 90 vertically, therefore, do not form the outer groove 94 of carrier.As a result, the second secondary seal 56 of black box 224 is not C type Sealing 154, and is arranged on the ring spacer 156 in the secondary leakage paths 52 between the second lateral surfaces 40b of carrier diapire 90 and valve body 12.In order to help operation and installation, any mode that can be common by related domain is bonded to packing ring 156 the carrier diapire 90 of seal carrier 246.So configuration, the process and the above-described process that remove or install black box 224 are basic identical.
As mentioned above, black box 24,224 reduces a plurality of parts that use in conventional black box, thereby reduces the cost of valve.And, the parts that use such as seal carrier 46 grades can be easily and at an easy rate machining form, in addition, seal carrier 46 sub-components can be inserted to the valve inside via bonnet opening 25, and not need valve is removed from pipeline.In addition, as described above, seal ring 44 can move with respect to seal carrier 46 vertically and radially, so that seal ring 44 is aimed at voluntarily, compensates ball/Sealing misalignment.
At Fig. 5 to Fig. 7, in illustrated another embodiment, black box 324 can comprise the annular seal ring 326 that is arranged on valve body 12 inside.Seal ring 326 is arranged on valve inside, and towards ball element 30 biasings, with sealing engagement ball element 30.Major leak path 328 is present in 12 of seal ring 326 and valve bodies, and the major leak path is exposed to the fluid pressure in valve.The one C type Sealing 330 is not slidably disposed on the outer surface of seal ring 326.A part of sealing engagement of the one C type Sealing 330 and seal ring 326 and valve body 12, flow in case the fluid in major leak path 328 is crossed in fluid stopping, and wherein, the fluid pressure in C type Sealing 330 forces seal ring 326 towards ball element 30 biasings.In addition, the spring force provided by a C type Sealing 330 is provided the relative shift between the part of seal ring 326 and valve body 12, and this spring force also can make seal ring 326 towards ball element 30 biasings.
As mentioned above, the seal ring 326 of black box 324 is roughly ring-type, and is formed by wear-resistant metal machinings such as carrying out case-hardened stainless steel such as alloy 6 or with alloy 6.As shown in the sectional view of Fig. 5 and Fig. 6, seal ring 326 can laterally be limited by tubular ring inwall 332, and can have the stepped ramp type external frame.Particularly, external frame can comprise that tubular ring outer wall 334 and diameter are than the large tubular ring midfeather 336 of diameter of ring outer wall 334.Ring diapire 338 can radially extend between ring outer wall 334 and ring inwall 332, and in the middle of ring, diapire 340 can radially extend between ring outer wall 334 and ring midfeather 336.Tubular ring flange wall 342 can have than the large diameter of ring midfeather 336, and ring flange diapire 334 can radially extend between ring midfeather 336 and ring flange wall 342.Ring roof 346 can radially extend inwardly from ring flange wall 342.Ball bond surface 348 can be extended between ring roof 346 and ring inwall 332, and ball bond surface 348 can be spill.More specifically, ball bond surface 348 can be coordinated with the corresponding part of the spherical outer surface of ball element 30 by sharp processing one-tenth, thereby moves to and close, take a seat or while locating, the ball bond of ring assembly 324 surface 348 engages with ball element 30 at rotary ball valve 10.Can carry out surface sclerosis to ball bond surface 348, with life-span of increasing Sealing and prevent the line of engagement wearing and tearing.
Ring-type grooving 350 can be arranged in the first cylindrical surface 38a of annular recess 42 of valve body.Circumferential clasp 352 can be at least partially disposed in grooving 350, so that the part of snap ring 352 is radially extended in the first cylindrical surface 38a.When black box 324 during in assembled state (when seal ring 326 is arranged on interior grooves 42 and snap ring 352 and is received in grooving 350), the axial distance that the ring diapire 338 of the comparable seal ring 326 of axial distance that the bottom surface of the second transverse wall 40b and snap ring 352 is 354 and ring roof are 346 is large.Therefore, the position that seal ring can contact with the second lateral surfaces 40b from ring diapire 338 in interior grooves 42 is displaced to the position that ring roof 346 contacts with the bottom surface 354 of snap ring 352 vertically.When ring diapire 338 axially staggers from the second lateral surfaces 40b, can produce the first radial gap 356.
With reference to Fig. 5 and Fig. 6, the diameter of the first cylindrical surface 38a of valve body 12 can be greater than the diameter of ring flange wall 342, and the diameter that the diameter of the second cylindrical surface 38b of valve body 12 can be greater than ring midfeather 336 is large.Therefore, under assembled state, can between ring outer wall 334 and the second tubular wall 38b, produce sealed groove 358 when black box 324.Additionally, first aims at gap 360 can be present between the second cylindrical surface 38b that encircles midfeather 336 and valve body 12, and second aims at gap 362 can be present between the first cylindrical surface 38a of ring flange wall 342 and valve body 12.By ball element 30 joint ring 326 time, due to the first and second aligning gaps 360,362, seal ring 326 can be with respect to valve body 12 radial displacements, thereby can make seal ring 326 radially aim at voluntarily, compensate because of any ball that mechanical tolerance causes/seal ring misalignment, in order to improve the sealing of 30 of seal ring 326 and ball elements.
As shown in Figure 5 and Figure 6, a C type Sealing 330 can be around the periphery setting of the ring outer wall 334 of seal ring 326, thereby, a C type Sealing 330 is arranged in sealed groove 358 during in assembled state at black box 324.The one C type Sealing 330 can be by making such as corrosion resistant metals such as N07718 (inconel 718).Can set the size of a C type Sealing 330, thereby a C type Sealing 330 can slide through the surface of ring outer wall 334 in assembling process, but, in the process of the interior grooves 42 that seal ring 326 is arranged on to valve body 12 and in the operating process at valve, a C type Sealing 330 remains on its assembling position on ring outer wall 334 substantially.And, at black box 324 during in assembled state, the part of the outside of the one C type Sealing 330 can contact with the second cylindrical surface 38b of valve body 12, and the above-mentioned interface of itself and the second cylindrical surface 38b can prevent or limit a C type Sealing 330 and move with respect to the second cylindrical surface 38b in the operating process of valve.The oral area of the one C type Sealing 330 can be opened vertically towards the second lateral surfaces 40b of valve body 12.Can further set the size of a C type Sealing 330, thereby in operating process, when process flow enters the oral area of a C type Sealing 330, a C type Sealing 330 expands outwardly, comes by this further to prevent that a C type Sealing 330 is axially displaced with respect to seal ring 326.Due to shape permission compression C type cross section when applying the power of radial inward of a C type Sealing 330, therefore, at seal ring 326, as mentioned above voluntarily on time, a C type Sealing can bend.
In operation, flow through the process flow of stream 22 pressure on entrance 18 sides of ball element 30 of valve higher than the pressure on export department's 20 sides.Consequently, because the first radial gap 356, seal groove 358, the first aligning gap 360 and second are aimed at gap 362 and can be communicated with export department's 20 side liquids of ball element 30 respectively, therefore, process flow has the first radial gap 356, seal groove 358, the first aligning gap 360 and the second trend of aiming at gap 362 of flowing through.Therefore, the first radial gap 356, seal groove 358, first are aimed at gap 360 and second and are aimed at the common major leak path 328 that forms, gap 362.But, because a C type Sealing 330 is arranged in seal groove 358, therefore, the process flow that flows through major leak path 328 can enter the oral area of a C type Sealing 330.The pressure that process flow flows into the oral area generation of a C type Sealing 330 can provide axial force on a C type Sealing 330, and this axial force has the trend that a C type Sealing 330 is shifted vertically towards export department 20.Because a C type Sealing 330 is not slidably disposed on the ring outer wall 334 of seal ring 326, therefore, process flow in a C type Sealing 330 can make seal ring 326 self be shifted vertically towards export department 20, thereby can make seal ring 326 towards ball element 30 biasings.Seal ring 326 can be towards export department's 20 biasings, until apical ring wall 346 contacts with snap ring bottom surface 354.Selectively, wavy spring (not shown) can be arranged between the first lateral surfaces 40a and ring flange bottom surface 344 of valve body 12, so that seal ring 36 is towards ball element 30 biasings.
When ball element 30 moves to closed position, as shown in Figure 6, the outer surface of ball element 30 can engage with the contoured ball bond surface 348 of seal ring 326, thereby makes entrance part 18 displacements of seal ring 326 towards valve 10.But, because the fluid pressure in a C type Sealing 330 makes seal ring 326 towards ball element 30 biasings by mode as above, therefore, the ball bond surface 348 of seal ring 326 can be held in and ball element 30 sealing engagement, thereby prevents that process flow from flowing to export department 20 from entrance part 18.Except the power provided by fluid pressure, a C type Sealing 330 can provide and make the spring force of seal ring 326 towards ball element 30 biasings.Particularly, move in the process of ball element 30 at cut-off valve while engaging with seal ring 326, seal ring 326 can be shifted vertically towards entrance part 18.Because a C type Sealing 330 immovably is arranged on the ring outer wall 334 of seal ring 326, and can limit or prevent the movement between a C type Sealing 330 and the second cylindrical surface 38b, therefore, seal ring 326 makes the part of the outside contacted with seal ring 326 of a C type Sealing 330 with respect to the part displacement of the outside contacted with the second cylindrical surface 38b of a C type Sealing 330 with respect to the second cylindrical surface 38b axially displaced.The relative shift of the part of the one C type Sealing 330 can make C type Sealing 330 bendings, thereby the spring force provided by a C type Sealing 330 is provided, and it has the trend of seal ring 326 towards ball element 30 biasings that makes.
On closed position, as mentioned above, the process flow that flows through major leak path 328 can enter the oral area of a C type Sealing 330.Process flow can make a C type Sealing 330 expand outwardly, thus the ring outer wall 334 of the part of the outside of a C type Sealing 330 and seal ring 326 and the second cylindrical surface 38b difference sealing engagement.Therefore, a C type Sealing 330 prevents that process flow from flowing through the major leak path 328 that is positioned at C type Sealing 330 downstreams.
As shown in Figure 7, the 2nd C type Sealing 364 is arranged on the ring outer wall 334 of the seal ring 326 between diapire 340 in the middle of a C type Sealing 330 and ring alternatively, so that the oral area of the 2nd C type Sealing 364 is towards the second lateral surfaces 40b of valve body 12 opening vertically.Optional the 2nd C type Sealing 364 can be physically with function on identical with a C type Sealing 330.But, because a C type Sealing 330 plays the effect of primary seal, in case the fluid in major leak path 328 is crossed in fluid stopping, flow, the 2nd C type Sealing 364 plays the effect of backup, in case any process flow of a C type Sealing 330 is crossed in fluid stopping, towards 328 belows, major leak path, advances.
When hope removes black box 324 from valve body 12, as mentioned above, bonnet 14, control unit 16, ball element 30 can be removed from valve body 12 via bonnet opening 25.Then, snap ring 352 can be extracted out in the grooving 350 from being arranged on the first cylindrical surface 38a, and can be removed from valve inside via bonnet opening 25.Then, seal ring 326 can be extracted out from the interior grooves 42 of valve body 12, and can be removed via bonnet opening 25, wherein, a C type Sealing 330 (the 2nd C type Sealing alternatively) still is attached to seal ring 326.Once be positioned at the outside of valve inside, a C type Sealing 330 (alternatively, the 2nd C type Sealing 364) can be removed from seal ring 326, keep in repair or change.
For black box 324 is mounted to valve body 12, when seal ring 326 is positioned at the outside of valve inside, a C type Sealing 330 (if expecting the 2nd C type Sealing 364) at first can be gone up in position around ring outer wall 334 settings of seal ring 326.Then, seal ring 326 can be inserted to valve inside via bonnet opening 25, and seal ring 326 can be arranged on to the interior grooves 42 of valve body 12.Then, snap ring 352 can be inserted in the grooving 350 of the first cylindrical surface 38a.So assembling, seal ring 326 may initial setting up in the interior grooves 42 of valve body 12, to guarantee suitable sealing between the part of the ball outside of the ball bond surface 348 of seal ring 326 and ball element 30.But, when in the closing process at rotary ball valve 10, ball element 30 and ball bond surface 348 contacts, due to the alignment feature voluntarily of previously described seal ring 326, ball element 30 makes seal ring 326 vertically and radially at interior grooves 110 internal shifts.
As mentioned above, black box 324 reduces a plurality of parts that use in conventional black box, thereby reduces the cost of valve.And, the parts that use such as seal ring 326 grades can be easily and at an easy rate machining form.In addition, do not need to use bolt that black box 324 is installed, thereby can reduce costs and reduce, in use remove the bolt engaged and make valve or risk that other downstream unit is impaired.And, because C type Sealing 330,364 can be with respect to interior grooves 42 bendings of valve body 12, therefore, black box 324 has the longer life-span than conventional black box.
Although described various embodiments in the above, the application is not intended to be defined in this.Can disclose embodiment be changed, it still drops in the scope of the claims of enclosing.
Claims (20)
1. a valve comprises:
Valve body, the valve inside that this valve body has entrance, outlet and is communicated with described entrance and exit fluid;
Bonnet, this bonnet is fixed to the top of described valve body removedly;
Ball element, this ball element is pivotably mounted on described valve inside, the outer surface of described ball element limits the part of spheroid, wherein, on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant;
Seal ring, the sealing ring is arranged in described valve inside, and, towards described ball element biasing, wherein, described seal ring is suitable for and described ball element sealing engagement;
Anchor ring, this anchor ring is arranged in described valve inside, and is fixed to described valve body;
Seal carrier, seal carrier is arranged on the described valve inside between described seal ring and described valve body, described seal carrier is fixed to described anchor ring removedly by a plurality of bolts, described a plurality of bolt is arranged in described valve inside, and be suitable for inserting described valve inside and remove from described valve inside, wherein, the major leak path is present between described seal ring and described seal carrier, secondary leakage paths is present between described seal carrier and described valve body, and described major leak path and described secondary leakage paths are exposed to fluid pressure in described valve;
The first secondary seal, this first secondary seal is arranged between described seal ring and described seal carrier, and described the first secondary seal prevents that the fluid that flows through described major leak path from flowing; And
The second secondary seal, this second secondary seal is arranged between described seal carrier and described valve body, and described the second secondary seal prevents that the fluid that flows through described secondary leakage paths from flowing.
2. valve as claimed in claim 1, wherein, form and aim at gap between described seal ring and described seal carrier, described aligning gap limits the part in described major leak path, described aligning gap provides and allows the described seal ring space radially mobile with respect to described seal carrier between described seal carrier and described seal ring, thereby, when described ball element engages with described seal ring seal, described seal ring is aimed at voluntarily.
3. valve as claimed in claim 1, wherein, described the first secondary seal be arranged between described seal ring and described seal carrier is C type Sealing.
4. valve as claimed in claim 3, wherein, described C type Sealing is arranged in the groove be formed in described seal ring.
5. valve as claimed in claim 4, wherein, the oral area of described C type Sealing can be towards the mobile direction of fluid that flows through described major leak path.
6. valve as claimed in claim 1, wherein, described the second secondary seal be arranged between described seal carrier and described valve body is C type Sealing.
7. valve as claimed in claim 6, wherein, the direction that the oral area of described C type Sealing can be mobile towards the fluid that flows through described secondary leakage paths.
8. valve as claimed in claim 6, wherein, described C type Sealing is arranged in the groove be formed in described seal carrier.
9. valve as claimed in claim 8, wherein, the part of described C type Sealing and described valve body and be formed at a part of sealing engagement of the described groove in described seal carrier, flow in case the fluid of described secondary leakage paths is crossed in fluid stopping.
10. valve as claimed in claim 1, wherein, described the second secondary seal be arranged between described seal carrier and described valve body is ring spacer.
11. valve as claimed in claim 1, wherein, wavy spring makes described seal ring setover towards described ball element.
12. valve as claimed in claim 11, wherein, described wavy spring is arranged in the groove be formed in described seal ring.
13. valve as claimed in claim 1, wherein, the Sealing guard ring that is coupled to described seal carrier limits axially displaced away from described seal carrier of described seal ring.
14. valve as claimed in claim 1, wherein, described Sealing guard ring is fixed to described seal carrier removedly by a plurality of bolts that are arranged in described valve inside.
15. valve as claimed in claim 1, wherein, each in described a plurality of bolts is threadedly engaged with the tapped hole be formed in described anchor ring with the tapped hole in the lip part that is formed at described seal carrier.
16. the method that ring assembly is installed comprises:
Ball valve is provided, this ball valve comprise there is entrance, outlet and the valve body of the valve inside that is communicated with described entrance and exit fluid and the bonnet opening adjacent with the top of described valve body;
Ball element is pivotably mounted in described valve inside, and the outer surface of described ball element limits the part of spheroid, wherein, on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant;
Position assembling seal carrier sub-component outside described valve inner, wherein, described seal carrier sub-component comprises:
Seal carrier, seal carrier has inner groovy;
Seal ring, the sealing ring is arranged in described inner groovy, and wherein, described seal ring is suitable for engaging hermetically described ball element;
The first secondary seal, this first secondary seal is arranged between described seal ring and seal carrier; And
The second secondary seal, this second secondary seal is coupled to described seal carrier,
Described seal carrier sub-component is inserted to described bonnet opening, so that described seal carrier sub-component is arranged in described valve inside;
Described seal carrier sub-component is fixed to described valve body, thereby described the first secondary seal prevents that fluid from flowing through the major leak path, wherein, described major leak path is present between described seal ring and described seal carrier, and described the second secondary seal prevents that fluid from flowing through secondary leakage paths, wherein, described secondary leakage paths is present between described seal carrier and described valve body; And
Bonnet is fixed to described valve body, to cover described bonnet opening.
17. a valve comprises:
Valve body, the valve inside that this valve body has entrance, outlet and is communicated with described entrance and exit fluid;
Bonnet, this bonnet is fixed to the top of described valve body removedly;
Ball element, this ball element is pivotably mounted on described valve inside, the outer surface of described ball element limits the part of spheroid, wherein, on the described outer surface of described ball element with the intrinsic pivotal point of described ball element, be not a little equidistant;
Seal ring, the sealing ring is arranged in described valve inside, and towards described ball element biasing, wherein, described seal ring is suitable for and described ball element sealing engagement, and wherein the major leak path is present between described seal ring and described valve body, and described major leak path is exposed to fluid pressure in described valve; And
The one C type Sealing, the one C type Sealing is not slidably disposed on the outer surface of described seal ring, a part of sealing engagement of a described C type Sealing and described seal ring and described valve body, in case crossing the fluid in described major leak path, fluid stopping flows, and wherein, fluid pressure in a described C type Sealing forces described seal ring to be setovered towards described ball element, and wherein, the spring force provided by a described C type Sealing is provided relative shift between the part of described seal ring and described valve body, this spring force is also towards the described ball element described seal ring of setovering.
18. valve as claimed in claim 17, wherein, described seal ring is arranged in the inner groovy of inside of described valve body, and limits axially displaced towards described ball element of described seal ring around the snap ring of the part setting of described inner groovy.
19. valve as claimed in claim 17, wherein, the 2nd C type Sealing is not slidably disposed on the outer surface of described seal ring, described the 2nd C type Sealing and the adjacent setting of a described C type Sealing, and described the 2nd C type Sealing engages described seal ring and described valve body hermetically, in case crossing the fluid in described major leak path, fluid stopping flows.
20. valve as claimed in claim 17, wherein, form at least one and aim at gap between described seal ring and described valve body, described aligning gap limits the part in described major leak path, described aligning gap provides and allows the described seal ring space radially mobile with respect to described valve body between described seal ring and described valve body, thereby, when described ball element engages with described seal ring seal, described seal ring is aimed at voluntarily.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/771,950 | 2010-04-30 | ||
| US12/771,950 US8720854B2 (en) | 2010-04-30 | 2010-04-30 | Floating ball valve seal with dynamic C-seal and static C-seal |
| PCT/US2011/032915 WO2011136968A1 (en) | 2010-04-30 | 2011-04-18 | Ball valve seal with dynamic c-seal and static c-seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102939486A true CN102939486A (en) | 2013-02-20 |
| CN102939486B CN102939486B (en) | 2015-07-29 |
Family
ID=44140901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180029049.4A Active CN102939486B (en) | 2010-04-30 | 2011-04-18 | There is the ball valve seal of dynamic C type Sealing and static C type Sealing |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8720854B2 (en) |
| EP (2) | EP2564096B1 (en) |
| CN (1) | CN102939486B (en) |
| AU (2) | AU2011245603B2 (en) |
| BR (1) | BR112012027779A2 (en) |
| CA (1) | CA2797862C (en) |
| MX (1) | MX2012012694A (en) |
| NO (1) | NO340207B1 (en) |
| RU (1) | RU2563791C2 (en) |
| WO (1) | WO2011136968A1 (en) |
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| EP3040588B1 (en) * | 2014-12-31 | 2017-05-03 | Cameron International Corporation | Double piston effect lip seal seating assemblies |
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| RU175005U1 (en) * | 2016-12-27 | 2017-11-15 | Фукуяма Ко., Лтд | COMPOSITE SEAL HOLDER WITH SPRING LOCKING RING |
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| US10883641B2 (en) | 2018-03-30 | 2021-01-05 | Vittorio BONOMI | Quick disconnect coupling |
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2011
- 2011-04-18 BR BR112012027779A patent/BR112012027779A2/en not_active Application Discontinuation
- 2011-04-18 AU AU2011245603A patent/AU2011245603B2/en not_active Ceased
- 2011-04-18 MX MX2012012694A patent/MX2012012694A/en active IP Right Grant
- 2011-04-18 CA CA2797862A patent/CA2797862C/en active Active
- 2011-04-18 RU RU2012150150/06A patent/RU2563791C2/en active
- 2011-04-18 WO PCT/US2011/032915 patent/WO2011136968A1/en active Application Filing
- 2011-04-18 EP EP11716774.2A patent/EP2564096B1/en active Active
- 2011-04-18 CN CN201180029049.4A patent/CN102939486B/en active Active
- 2011-04-18 EP EP14160553.5A patent/EP2829777B1/en active Active
-
2012
- 2012-11-01 NO NO20121285A patent/NO340207B1/en not_active IP Right Cessation
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2017
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| US4155536A (en) * | 1977-05-30 | 1979-05-22 | The Japan Steel Works, Ltd. | Seat ring assembly for a valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108700205A (en) * | 2016-02-26 | 2018-10-23 | 舍弗勒技术股份两合公司 | Pipe connections and thermal management module with pipe connections |
| CN108700205B (en) * | 2016-02-26 | 2020-09-11 | 舍弗勒技术股份两合公司 | Tube connection and thermal management module with a tube connection |
| US10865888B2 (en) | 2016-02-26 | 2020-12-15 | Schaeffler Technologies AG & Co. KG | Connection fitting and heat management module including same |
| CN106556637A (en) * | 2016-11-11 | 2017-04-05 | 上海理工大学 | A kind of photoelectrocatalysis reaction experiment device |
| CN113366250A (en) * | 2019-01-22 | 2021-09-07 | 艾默生伏尔甘控股有限公司 | Valve seal assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2017200231A1 (en) | 2017-02-02 |
| EP2564096B1 (en) | 2014-03-19 |
| EP2829777A1 (en) | 2015-01-28 |
| NO340207B1 (en) | 2017-03-20 |
| RU2563791C2 (en) | 2015-09-20 |
| CA2797862A1 (en) | 2011-11-03 |
| RU2012150150A (en) | 2014-06-10 |
| WO2011136968A1 (en) | 2011-11-03 |
| EP2564096A1 (en) | 2013-03-06 |
| CN102939486B (en) | 2015-07-29 |
| BR112012027779A2 (en) | 2017-08-08 |
| MX2012012694A (en) | 2012-12-17 |
| CA2797862C (en) | 2018-05-15 |
| NO20121285A1 (en) | 2012-11-01 |
| AU2017200231B2 (en) | 2018-10-18 |
| AU2011245603B2 (en) | 2016-10-13 |
| US20110266482A1 (en) | 2011-11-03 |
| EP2829777B1 (en) | 2016-04-13 |
| US8720854B2 (en) | 2014-05-13 |
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